Elevated levels of cysteine protease activity in saliva and salivary glands of the nonobese diabetic (NOD) mouse model for Sjogren syndrome. - Robinson,C.P.; Yamachika,S.; Alford,C.E.; Cooper,C.; Pichardo,E.L.; Shah,N.; Peck,A.B.; Humphreys-Beher,M.G. (Proc Natl Acad Sci U S A, 1997)